Top 10+ eCommerce App Development Companies in California | eCommerce App Developers California 2026
Last Updated 05th September 2026 | Category: Top App Development FirmsThe List of Top 10+ eCommerce App Development Companies in California | Top eCommerce App Developers Califonia September 2026
1. Hyperlink InfoSystem
Sponsored
Details
| Founded: | 2011 |
|---|---|
| Hourly Rates: | < $25 |
| Employees: | 1000+ |
| Avg. Project Cost: | $100,000+ |
| Ratings: |
5.0
497 Reviews
|
Since 2011, Hyperlink InfoSystem has operated as a technology services provider. Hyperlink InfoSystem focuses on Mobile App Development. Hyperlink InfoSystem employs 1000+ people. Clients can expect pricing around < $25/hr, with projects averaging about $100,000. Overall, Hyperlink InfoSystem is one of the options worth shortlisting for a technology project.
Details
| Founded: | 2000 |
|---|---|
| Hourly Rates: | < $25 |
| Employees: | 50 - 249 |
| Avg. Project Cost: | $25,000+ |
| Ratings: |
4.1
6 Reviews
|
Emorphis has been in business since 2000, delivering technology projects for clients. The company's day-to-day work covers web platforms, mobile apps, and bespoke software. Emorphis employs 50 - 249 people. Clients can expect pricing around < $25/hr, with projects averaging about $25,000. This gives a quick snapshot of what to expect when working with Emorphis.
Details
| Founded: | 2010 |
|---|---|
| Hourly Rates: | $50 - $99 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | $2,500,000+ |
| Ratings: |
4.5
8 Reviews
|
Reinvently is a software development company that turns ideas into working products. The company's main offerings are Mobile App Development and Custom Software Development. Its team includes 10 - 49 specialists working across design, development, and delivery. Clients can expect pricing around $50 - $99/hr, with projects averaging about $5,000,000. This gives a quick snapshot of what to expect when working with Reinvently.
Details
| Founded: | 2010 |
|---|---|
| Hourly Rates: | $150 - $199 |
| Employees: | 50 - 249 |
| Avg. Project Cost: | $25,000+ |
| Ratings: |
4.6
7 Reviews
|
Businesses looking for a reliable technology partner often consider Fjord. Fjord builds web and mobile products, plus custom software for clients with specific needs. Its team includes 50 - 249 specialists working across design, development, and delivery. Typical hourly rates run around $150 - $199/hr, with an average project cost near $5,000,000. This gives a quick snapshot of what to expect when working with Fjord.
Details
| Founded: | 2001 |
|---|---|
| Hourly Rates: | $150 - $199 |
| Employees: | 250 - 499 |
| Avg. Project Cost: | $25,000+ |
| Ratings: |
4.2
7 Reviews
|
Since 2001, Altoros has operated as a technology services provider. The company's main offerings are Custom Software Development. Altoros employs 250 - 499 people. Clients can expect pricing around $150 - $199/hr, with projects averaging about $25,000. These details offer a useful starting point when evaluating Altoros.
Details
| Founded: | 2007 |
|---|---|
| Hourly Rates: | $25 - $49 |
| Employees: | 50 - 249 |
| Avg. Project Cost: | $5,000,000+ |
| Ratings: |
4.3
6 Reviews
|
TechValens Software Systems works with clients to plan, build, and ship digital products. The company's main offerings are Mobile App Development. Its team includes 50 - 249 specialists working across design, development, and delivery. Clients can expect pricing around $25 - $49/hr, with projects averaging about $50,000. This profile is a starting point — reach out to TechValens Software Systems directly to discuss project specifics.
Details
| Founded: | 2001 |
|---|---|
| Hourly Rates: | $100 - $149 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | $25,000+ |
| Ratings: |
4.1
7 Reviews
|
Businesses looking for a reliable technology partner often consider Sileria. Sileria focuses on Web Development and Mobile App Development. Sileria employs 10 - 49 people. Typical hourly rates run around $100 - $149/hr, with an average project cost near $100,000. Overall, Sileria is one of the options worth shortlisting for a technology project.
Details
| Founded: | 2007 |
|---|---|
| Hourly Rates: | N/A |
| Employees: | 2 - 9 |
| Avg. Project Cost: | $2,500,000+ |
| Ratings: |
4.8
6 Reviews
|
Herlinda Technologies Consulting is a software development company that turns ideas into working products. Herlinda Technologies Consulting focuses on Mobile App Development. With 2 - 9 people on staff, Herlinda Technologies Consulting can take on projects of varying size. The average project on record costs around $2,500,000. Overall, Herlinda Technologies Consulting is one of the options worth shortlisting for a technology project.
Details
| Founded: | 2005 |
|---|---|
| Hourly Rates: | $50 - $99 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | $100,000+ |
| Ratings: |
4.6
8 Reviews
|
Businesses looking for a reliable technology partner often consider The BHW Group. Their core services include Mobile App Development. The BHW Group employs 10 - 49 people. Clients can expect pricing around $50 - $99/hr, with projects averaging about $50,000. This gives a quick snapshot of what to expect when working with The BHW Group.
Details
| Founded: | 2007 |
|---|---|
| Hourly Rates: | N/A |
| Employees: | 2 - 9 |
| Avg. Project Cost: | $25,000+ |
| Ratings: |
4.8
6 Reviews
|
Barton Consulting is a technology company founded in 2007. The company's main offerings are Web Development, Mobile App Development and Digital Marketing. Barton Consulting employs 2 - 9 people. Projects with this company average about $50,000. Overall, Barton Consulting is one of the options worth shortlisting for a technology project.
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Got questions about our specialized technology solutions? We have the answers to help you make informed decisions.
Put the same short brief in front of every App Development company in California you're considering, and compare not just their quotes but how each one interprets the brief — what questions they ask, what risks they flag, what they'd do differently. Price and timeline matter, but they mean little without knowing whether the firm actually understood the problem. Calling one or two of each company's past clients directly usually tells you more in ten minutes than another round of proposals would.
The better App Development companies in California plan around the time difference rather than ignoring it — usually by shifting core hours to overlap a few hours with the client's day, and filling the rest of the gap with recorded demos, written status updates, and async-friendly tools. It's a solvable problem, but only if it's addressed explicitly before the project starts; agree on exactly how much overlap you need with your App Development partner in California up front.
The line items that push a App Development project in California over budget are rarely the obvious ones — it's usually the number of third-party integrations, how deep the testing needs to go, and what happens after launch in terms of support and maintenance. Compliance and security work, if your project needs it, adds a real chunk on top. A proper discovery conversation with your App Development partner in California should surface most of this before you sign anything.
Rankings for App Development companies in California are built from a mix of verified client reviews, the depth and relevance of each firm's portfolio, market presence, and how responsive they are on the platform itself — not a single self-reported score. Our team cross-checks submitted project details against client interviews wherever possible, so a company sitting near the top of the California list has that position backed by more than its own marketing.
Listings for App Development companies in California update continuously as new reviews come in, with a more thorough re-ranking pass every few months. That means a firm coasting on an old reputation without fresh client feedback will gradually slide, while newer companies with strong recent delivery can move up — the goal is that the California list reflects how firms are performing now, not two years ago.
The highest-rated App Development companies in California usually earn that position through a combination of solid technical delivery and genuinely good communication — the two rarely show up separately in strong reviews. Look past the aggregate star rating and read a handful of full reviews; specific, detailed praise about how a project actually went is a far better signal of which App Development company in California will be a good fit than a number alone.
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